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1979 Mark Cutting Out & Update

Hello Bill,

I have a Lincoln Continental Mark V 400 cu.in, collectors series 1979. After about an hour of driving the engine stops and I have to wait about 5 to 10 minutes and then start the engine again. I have cleaned the carburetor, blown clean fuel pipe to the tank and cleaned the fuel tank.

On the electrical side, I have changed the ignition coil and inspected the spark plugs and distributor cap and rotor. I have found a ground fault on the cable from the negative battery terminal and ground. This cable is now replaced but the problem remains. There must be some component that fails when it gets hot. Do you have any suggestions how I should proceed?

Best regards

Rolf

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Hello Rolf -

Your stalling when hot issue is not uncommon and it sure sounds like the Duraspark ignition is at fault. There is a pick up module in the distributor that can fail but your problem sounds more like the Ignition Module under the hood is at fault. It is located on the drivers side and mounted on the fender splash shield above the l.f.wheel. We usually substitute new or good known units as a test. The ignition components are shown and described in the Shop Manual.

Sincerely,

Bill

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Hello again Bill,

Thanks for a quick reply, Is it possible to replace the ignition system "Duraspark" with a conventional breaker system? I tried with a distributor from Ford Galaxy and it fit on my Lincoln. After the change so ended the stops but the engine was not running so purely as before.

If the quality is not so good on the electronic ignition system you can maybe shift to a system with breaker contact? If it is possible do I need to including replace the ignition coil and spark plugs?

Best regards

Rolf

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Rolf -

Sorry, but we have no experience with downgrading the Duraspark ignition system to the earlier points and condenser ignition. I'm sure that someone somewhere has done this though. Again, sorry that that we couldn't help you in this regard.

Sincerely,

Bill